videos in AudioSet
A list of about a million ten-second YouTube clips, each labelled with the sounds in it, that Google published in 2017. Labs use it to train and test general audio and music models.
Including Microtonal Guitar Types - 5 Interesting Guitar Designs, Tanbur - Traditional Music of Turkey with Wooden Instruments, Gabriel Malancioiu - Doğala Doğru - Harmonic Series / Microtonal Guitar